Problems forwarding ports on my router

I don't know if this is the right section, sorry if it is not. My router: NetGear WPN 824v2
For some reason I can't forward ports. I know I'm a newbie to this, but this port used to be open before, but not anymore for some weird reason. I have tried to reset the router, upgrade firmware but it still doesn't work. Sometimes when I delete that port, and try to readd it, I get the error "Port conflict with other service" as if it is already forwarded, even though it is not in the list. Is this a known issue? I see other people have the same problem but nobody gives a proper explaination for this.

Even though I've added it to the list


It appears to not be open


Excuse me for norwegian windows. Command:


Internet Protocol (TCP/IP) Properties



Do you know any solution for this?

your dns server is the same as your router's IP address?

It's my understanding that these two should be different because your router should be getting DNS server IP's provided by your ISP.